Fabrication and test of a diamond-turned mirror suitable for a spaceborne photometric heliospheric imager

Andrew Buffington, Kirk G. Bach, Bernhard W. Bach, Erich K. Bach, M. M. Bisi, P. Paul Hick, Bernhard V. Jackson, Peter D. Klupar

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

3 Citations (SciVal)

Abstract

We have fabricated a diamond-turned low-mass version of a toroidal mirror which is a key element for a spaceborne visible-light heliospheric imager. This mirror’s virtual image of roughly a hemisphere of sky is viewed by a conventional
photometric camera. The optical system views close to the edge of an external protective baffle and does not protrude from the protected volume. The sky-brightness dynamic range and background-light rejection requires minimal wide-angle scattering from the mirror surface. We describe the manufacturing process for this mirror, and present preliminary laboratory measurements of its wide-angle scattering characteristics.
Original languageEnglish
Title of host publicationSociety of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Volume7438
DOIs
Publication statusPublished - 20 Aug 2009

Publication series

NameSociety of Photo-Optical Instrumentation Engineers (SPIE) Conference Series

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